Kegerators can be a great way to keep beer on tap in the house, but they're expensive to build or purchase, which is why Instructables user MrBippers put together a guide to converting a chest freezer to a kegerator for just $20.

The real trick here is that this guide uses a cheap, custom installed temperature controller. It turns out, hacking in your own can save you quite a bit of money, and it doesn't seem to take too much to do yourself. MrBippers' version doesn't have the front side tap like we've seen with other instructions and instead has a picnic tap connected directly on the inside, but for $20, it's hard to complain. If a kegerator isn't your thing, you can also convert it into a fermenter. You can find the full guide over on Instructables.